Date: Tue, 7 Feb 2012 12:49:55 -
Author: --- Paul Doherty
Subject: Re: Electrostatics in Space
Doing some calculations on the electrostatics force law from a linear charge source.
The force falls off proportional to 1/r the centripetal force in a circular orbit of radius r is proportional to v^2/r set these equal and find the orbital velocity v is constant independent of radius.
The orbital period is T = 2pir/v so T is proportional to r.
I'll have to look at frame by frame analysis and see how well this hold up.
On Feb 7, 2012, at 10:33 AM, Jerry DiMarco wrote:
> Perhaps a Millikan oil drop apparatus could be adapted to do this...
> Jerry D
> At 2/7/2012 01:22 PM, you wrote:
>> Though I'd love to do it in class...perhaps in a falling elevator?
>>> On 2/7/2012 11:35 AM, David Maiullo wrote:
>>>> Hi Tappers,
>>>> I thought this was pretty neat: